Stencil stretching and clamping means for ink hand stamps



Oct. 13, 1964 c. E. CARLSEN STENCIL STRETCHING AND CLAMPING MEANS FORINK HAND STAMPS Filed July 9, 1962 INVENTOR. CARL E. CARLSEN ATTORNEYUnited States Patent 3,152,541 STENCIL STRETCHING AND CLAMPING MEANS FORINK HAND STAMPS Carl E. Carlsen, 867 3rd Ave., New York, N.Y. Filed July9, 1962, Ser. No. 208,480 7 Claims. (Cl. 101125) This inventionconstitutes a continuation in part of my pending applications forpatents, Ser. Nos. 72,667, now Patent Number 3,101,048 and 92,716, nowabandoned, and it has for its object, among other things, the adding ofa new feature, whereby to open a stamp in order to facilitate re-inkingof same without disturbing the stencil, besides having all of thefeatures described in my aforesaid pending applications combined, suchas applying a pull to the stencil, whereby to prevent it from makingwrinkles, and also using two semi-cylinders, of which one, the printingcylinder is perforated, using two pads, one of which is the regularprinting pad, and the other an absorbing storage pad.

In this application, in which similar characters of reference indicatecorresponding parts:

FIGURE 1 is a top plan view of a stamp in open position.

FIGURE 2 is a top plan view of the stamp in closed position, with partbroken off.

FIGURE 3 is an end elevational view of said stamp.

FIGURE 4 is a detail sectional view showing part of a lock, with astencil stretching mechanism.

FIGURE 5 is a prospective view of the stencil; while FIGURE 6 is adetail view of the stencil, in part, showing a metal piece inserted intoa loop of the latter.

The invention comprises two semi-cylinders hingedly connected.

A handle is attached to the upper semi-cylinder, this uppersemi-cylinder is formed with a cut-01f portion adapted to accommodate astencil stretching and locking mechanism of the lower semi-cylinder.

The upper semi-cylinder is on each side of the cut-off portion formedwith projecting edge portions, which serve as a protection in preventingthe stencil from being disturbed.

A lower perforated printing semi-cylinder, which is hingedly attached tothe upper semi-cylinder, is formed with reduced portions on each side,whereby to permit the ink pads to extend over the edges of the printingsemicylinder, so as to prevent the latter from damaging the stencil.

Inside the upper semi-cylinder is arranged an ink storage pad, which inopening the stamp, exposes the perforated printing semi-cylinder to beinked, and when the two semi-cylinders are subsequently broughttogether, said storage pad will now absorb part of the ink applied tosaid printing semi-cylinder, While by exerting a pressure upon saidsemi-cylinders the supply of ink will be forced into the printing pad.

The lock for securing the two semi-cylinders together is made to permita flexible movement of the outer printing semi-cylinder relative to theinner semi-cylinder, thus permitting the storage pad to be squeezedbetween said two semi-cylinders, and at the same time exerting apressure, whereby to convey ink to the printing pad and paper.

The stencil is re-enforced at both ends to add strength to the latter,and on that side is touching the paper to be printed, to prevent stencilsmutching.

The said stencil is at one end securely attached to the starting side ofthe stamp and has at the opposite end a loop to receive a metal pieceformed with an eyelet so that a springy member attached to the printingsemi-cylinder will engage said eyelet and apply a pull to the stencil.

Referring more particularly to the drawing, the numeral 10 indicates thestamp. The numeral 11 indicates the top or upper part of the stamp,which is formed with a cut-away portion 12 adapted to accommodate a lockand a stencil stretching mechanism 14.

Flanges, or edge portions, 15 on both sides of the cutaway portion 12 ofthe upper semi-cylinder 11 are extended at their outer ends and adaptedto touch the paper and thereby serving as a guard to the stencil 27 frombeing disturbed.

A handle 16 is attached to the upper semi-cylinder 11; while an inkstorage pad 17 is secured to the inside of said upper semi-cylinder.

The lower semi-cylinder 18 is made with perforations 19 and is hingedlyattached to the upper semi-cylinder 11 as at 20.

The lower printing semi-cylinder 18 is formed with a cut-away portion 21to permit the printing pad and the ink storage pad 17 to cover the edgeof said printing semicylinder 18, thereby preventing the latter fromtouching the stencil.

The printing pad 22 is secured to the outer side of the perforatedsemi-cylinder.

A lock 13 is attached to, or may be part of, the lower printingsemi-cylinder; and locks by extending over the upper semi-cylinder, atthe same time part of the lock 13 forms a bearing for said stencilstretching mechanism 14 attached to the latter by a pin 23, which alsosecures a spring 24 that actuates the stencil stretching mechanism Oneend of the stencil is provided with openings 26 which are adapted to fitprongs 25 on the starting side of the stamp. On the opposite end of thestencil the reenforcing paper is folded over to form a loop 28 adaptedto receive a metal strip 29 made with an eyelet 30 that engages a hookpart of the stencil stretching mechanism.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent of the United States, is:

1. A stamp comprising an upper semi-cylinder and a lower perforatedprinting semi-cylinder hingedly connected and permitting opening of saidstamp for application of ink to the latter, a handle attached to oneside of the upper semi-cylinder and an ink absorbing storage pad securedto the opposite side thereof, leaving, when said stamp is opened, saidink absorbing storage pad and the upper side of the perforated printingsemi-cylinder fully exposed for inking, the upper semi-cylinderterminating in extended edges and being formed with a cut-away portion,a lock and stencil stretching mechanism arranged upon the lower printingsemi-cylinder and adapted to be received by said cut-away portion in theextended edges of the upper semi-cylinder, a stencil and a pad mountedupon the lower printing semi-cylinder, said stencil being re-enforced atboth ends, whereby to prevent it from smutching a paper as the stamp isbeing placed upon and removed from the latter, the lower printingsemi-cylinder being formed with perforations and being of a smallerdimension than said pads, whereby to permit the latter to extend overand cover the edges of said lower printing semi-cylinder preventing thelatter from touching the stencil.

2. In an invention, as claimed in claim 1, a printing semi-cylinder inwhich said stencil being at one end securely attached to the startingside of the stamp, a reenforced paper secured to said stencil and havingat one end a loop, a metal piece formed wtih an eyelet and engaging saidloop, a springy member attached to the printing semi-cylinder andadapted to engage said eyelet, whereby to apply a pull to the stencil.

3. In an invention, as claimed in claim 1, edge portions on both sidesof the cut-away portion in the upper semicylinder being adapted to toucha paper and serving as a guard to prevent the stencil from beingdisturbed as the stamp is removed from said paper, simultaneouslystopping the squeezing of the ink pads and the flow of ink as soon asthe actual printing has been done by rolling the stamp on to said edges.

4. In an invention, as claimed in claim 1, and wherein a lock isattached to the lower printing semi-cylinder locking this together withthe upper semi-cylinder by extending over the latter, part of said lockforming a bearing for a stencil stretching mechanism, a pin securing thelatter to said lock, and a spring for actuating the stencil stretchingmechanism.

5. In an invention, as claimed in claim 1, wherein one side of saidstamp being formed with prongs, one end of the stencil being providedwith opening adapted to engage said prongs, said stencil being made witha reenforced paper folded at one end of said stencil to form a loop, ametal strip having an eyelet adapted to engage said loop, and ahook-part of the stencil stretching mechanism made to engage saideyelet.

6. In an invention, as claimed in claim 1, a lock for securing the twosemi-cylinders together obtaining a flexible movement of the printingsemi-cylinder relative to the upper semi-cylinder, whereby to permit thestorage pad to be squeezed between said two semi-cylinders and exertinga pressure adapted to convey ink to the printing pad and paper.

7. An invention, as claimed in claim 1, and wherein one end of thestencil being springingly attached, whereby 10 to apply pull to saidstencil.

References Cited in the file of this patent UNITED STATES PATENTS1,113,634 Hopwood Oct. 13, 1914 1,347,743 Hidalgo July 27, 19201,789,464 Harts Jan. 20, 1931 1,903,740 Winther Apr. 11, 1933 FOREIGNPATENTS 493,192 Great Britain Oct. 4, 1938 763,211 France Apr. 26, 1934

1. A STAMP COMPRISING AN UPPER SEMI-CYLINDER AND A LOWER PERFORATEDPRINTING SEMI-CYLINDER HINGEDLY CONNECTED AND PERMITTING OPENING OF SAIDSTAMP FOR APPLICATION OF INK TO THE LATTER, A HANDLE ATTACHED TO ONESIDE OF THE UPPER SEMI-CYLINDER AND AN INK ABSORBING STORAGE PAD SECUREDTO THE OPPOSITE SIDE THEREOF, LEAVING, WHEN SAID STAMP IS OPENED, SAIDINK ABSORBING STORAGE PAD AND THE UPPER SIDE OF THE PERFORATED PRINTINGSEMI-CYLINDER FULLY EXPOSED FOR INKING, THE UPPER SEMI-CYLINDERTERMINATING IN EXTENDED EDGES AND BEING FORMED WITH A CUT-AWAY PORTION,A LOCK AND STENCIL STRETCHING MECHANISM ARRANGED UPON THE LOWER PRINTINGSEMI-CYLINDER AND ADAPTED TO BE RECEIVED BY SAID CUT-AWAY PORTION IN THEEXTENDED EDGES OF THE UPPER SEMI-CYLINDER, A STENCIL AND A PAD MOUNTEDUPON THE LOWER PRINTING SEMI-CYLINDER, SAID STENCIL BEING RE-ENFORCED ATBOTH ENDS, WHEREBY TO PREVENT IT FROM SMUTCHING A PAPER AS THE STAMP ISBEING PLACED UPON AND REMOVED FROM THE LATTER, THE LOWER PRINTINGSEMI-CYLINDER BEING FORMED WITH PERFORATIONS AND BEING OF A SMALLERDIMENSION THAN SAID PADS, WHEREBY TO PERMIT THE LATTER TO EXTEND OVERAND COVER THE EDGES OF SAID LOWER PRINTING SEMI-CYLINDER PREVENTING THELATTER FROM TOUCHING THE STENCIL.